You're fine. Sometimes it can take a week or longer for the sprout to even break ground, and sometimes they explode quickly. During your first couple weeks if you have growth issues arise, 9 times out of 10 it's going to be something going on at the root zone level. I don't think you're too dry....and you certainly don't wanna get them too wet. Doesn't look like you used any perlite, which helps to keep soil loose for root growth in addition to aeration. That would be my guess... slow root development. If you can repot without damaging your plants do so and incorporate a healthy amount of perlite when you do.